Heater



Aug. 26, 1930. A. o BOWEN Er' AL 1,773,806

HEATER 2 Sheets$heet 1 j'z' J.

. Filed May-15, 1929 INVENTOR' ATTORNE\ 26, 1930. A. o. BOWEN ET AL. 1,773,806

HEATER Filed May 15, 1929. 2 Sheets-Sheet 2 INVENTOR ATTORNEY Patented Aug. 26, 1930 UNITED STATES PATENT OFFICE ALBERT O. BOWEN AND DANIEL J. BOUEN, OF ST. CHARLES, ILLINOIS, ASSIGNORS TO ERNEST A. CONAVJAY, OF LITTLE ROCK, ARKANSAS HEATER Application filed May 15,

This invention relates to improvements in heaters particularly adapted though not necessarily limited in its use with steam heating systems, hot water heating systems or the like, and one of the objects of the invention is to improve and simplify heaters of this character and to provide an improved heating apparatus whereby steam or hot water may be produced with a minimum amount of fuel and at a very low cost.

It has been found in practice that compressed air contained in an hermetically sealed container can be quickly heated by means of a heating element also located within the container, and that a very high degree of heat will be produced in a minimum amount of time and with a minimum amount of heat, and which heat can be effectively used in the production of steam and hot water. The attainment of this end is therefore another object of the present invention.

A further object of the invention is to provide in an improved heater of this character a plurality of electric heating elements, so arranged, grouped or wired that they may be selectively rendered active or inactive for controlling the amount of heat generated thereby.

A further object is to provide an improved heater of this character which will be simple. durable, cheap and compact in construction and effective and efficient in operation.

To the attainment of these ends and the accomplishment of other new and useful objects as will appear, the invention consists in the features of novelty in substantially the construction, combination and arrangement of the several parts hereinafter more fully described and claimed and shown in the accompanying drawings illustrating this invention, and in which Figure 1 is a "ertical sectional view through a heater of this character constructed in accordance with the principles in this invention.

Figure 2 is a detail sectional view taken on line 2-2 Figure 1.

Figure 3 is a detail sectional View taken on line 33 Figure 1.

Referring more particularly to the draw- 1929. Serial No. 363,264.

ings the numeral 10 designates generally an outer casing which may be of any desired size and configuration and constructed of any suitable material. Within the outer cas ing 10 is arranged another casing 11 which is of a size considerably smaller than the internal diameter of the casing 10. The casing 10 is closed at its top as at 12 and the casing 11 is also closed at its top as at 13. The bottom of the casing 10 is closed by means of a wall 14 arranged between the wall of the casing 11 and the wall of the casing 10.

The casing 11 is open at its bottom and a closure 15 is provided for the open end of the casing 11. This closure may be secured in position in any desired or suitable manner such as by means of fastening devices 16 so as to hermetically seal the inner casing or chamber 11.

WVith this construction it will be manifest that inasmuch as the inner casing 11 is of a size considerably smaller than the interior of the casing 10 there will be provided a water and steam space within the chamber 10 encompassing the chamber or casing 11.

Within the casing or chamber 11 is arranged pipes 17 preferably in the form of coils and any number of these coils may be provided.

In the present exemplification of the invention two of such coils are illustrated and they are arranged one within the other. The ends 18 of one of the coils are secured to the wall of the casing or chamber 11 by means of suitable couplings 19, while the ends 20 of the other coils are secured to the wall of the casing or chamber 11 by means of suitable coupling devices 21 so that the coils will each have communication with the water space between the walls of the casings l0 and 11, thereby permitting the water from the casing or chamber 10 to flow through the (30118 and back into the casing or chamber 10.

Arranged also within the chamber or casing 11 are a plurality of heating elements 22. any number of which may be provided and these heating elements are mounted upon a suitable structure 23, which latter is preferably secured to the closure 15 so that when the closure 15 is removed, if desired, the

he be Withdrawn from 1 i as the closure 15 15 the closure 15 1s lg elements 22 5 element suitable for wl h Q 11 t- .LJL\) i\1[.. dilLt LAeee 1L3.

d together in anj, groups series or i g sunplied to the elee onductors H.

r 1e cha o r oreferabl nz. -:.ble peeling 28 in one casino or chamber 10, pr :7 with th 511L320 hale c1 gh a s1.

3t may also be provided or c 10 and a safety re- PW also re JOVlClQCl. It debe provided for r chamber or casing source. preferably vrei erahl adjacent nd the steam which r chamber 10 may rough a pipe 3% to Ol viously a ralre no 3d: not shown) 11177 a predeterecl .i'r to the inner om any suitable in. which After the 2 11 the valve and this supair is maini. in; a controller 39, uitable construction ctivelv connected or terminals 'ctors 'orided with 2 that lji J adjusting the anr desired number of ma: be cut in or cut of heat nece3- operation of the device. in practice that by proll i sealed chamber, such casino; 11, or

v surging tne minimum znnount of current so i with a the LQUNX) ature of 'he rater in the chamb' r or e 10 will be rapidly raised or will he l'hltjo in a minimum amount of time.

The cliicienci' 0;: eason of ti hamber or ti o desired derender 1naca the manipulawith mber headed to a .ne compressed I111 t'i .ei lements 22 and that tnc inter in the cone 1'? Will be lntensely leatcc tl'iaue" r tron rihbe induced in or fiuid n the chamis at their lowermost 1 god back into the )erinost point in the .in will cscaoe through the While the preilerre rorz'n oi the invention 2; been her and cescribed, 1t 18 to rious e ianges maybe i 3E construction and in arran -nent of the oi the claims, Without )ll'lt of this invention. new is or for use in u circulating heating system, said heater emb 'ng a Water chama confined predewithin the 32, with the Bio termined quantity of compressed air out of commingling relation with the contents of the water chamber, and means for heating said confined and compressed air for heating the water in the water chamber, the last-recited means embodying means for circulating water in the water chamber through the compressed and heated air and out of commingling relation therewith.

2. A heater for use in a circulating heating system, said heater embodying two chambers out of communication with each other, one of said chambers containing liquid, the other of said chambers being hermetically sealed, a heating element in the last said chamber, and means whereby the last said chamber may be supplied with a predetermined amount of compressed air.

3. A heater for use in a circulating heating system, said heater embodying two chambers out of communication with each other, one of said chambers containing liquid, the other chamber being hermetically sealed, a plurality of heating elements in the last said chamber, means whereby the last said chamber may be supplied with a predetermined amount of air under pressure, and means for selectively controlling the said heating elements at will.

4-. The method of producing steam for a fluid circulating heating system which consists in confining compressed air to a predetermined area, then heating the air thus confined to raise the temperature thereof, and then subjecting the circulating fluid to such heated compressed air.

In testimony whereof we aifix our signatures.

ALBERT O. BOWEN. DANIEL J. BOWEN. 

